Windows 11 Gains Performance Boost with Memory Fixes, Faster Startup, and File Explorer Tweaks
Microsoft has released the April 2026 optional preview update KB5083631 for Windows 11 versions 24H2/25H2, delivering a broad set of under-the-hood improvements: fixes for the File Explorer white flash in dark mode and related UI quirks, modernization of legacy dialogs with WinUI 3, preserved view and sorting settings, and a more reliable explorer.exe process; memory optimizations for the Delivery Optimization service, faster startup for startup apps, and an increase of FAT32 formatting support from 32GB to 2TB via the command line. Additional reliability fixes touch the taskbar, Microsoft Store error codes, Windows Hello data persistence across upgrades, Remote Desktop scaling, color profile persistence, and input improvements. The update is currently optional and is expected to roll out to all users with the May 12, 2026 Patch Tuesday update.